IDRA weather radar measurements - day 2016-07-13

Radar range: far. Max rain level: strong rain. Parent item: IDRA weather radar measurements - month 2016-07 Measuring instrument: IDRA atmospheric radar in CESAR observatory, Cabauw IRCTR has built a high resolution radar system, IDRA (IRCTR Drizzle Radar), aimed at the detailed observation of the spatial and temporal distribution of rainfall and drizzle. The system was placed at the end of August 2007 on top of a 213 m high meteorological tower in the CESAR (Cabauw Experimental Site for Atmospheric Research) observatory in Cabauw, The Netherlands. This location has several advantages: In the first place, an increased sensitivity due to the reduction of the influence of ground clutter. Secondly, it allows direct observation of the horizontal distribution of low level clouds and fog. Finally, the presence of other instruments in the vicinity enhances the understanding of the physical processes in the atmosphere by synergistically combining their measurements. Data from other instruments at CESAR are available at {http://www.cesar-database.nl}. IDRA provides the horizontal distribution of reflectivity, mean Doppler velocity, Doppler spectrum width and polarimetric parameters like differential reflectivity, linear depolarization ratio or specific differential phase. The data collected is freely available to the scientific community.

雷达作用距离：远距。最大降雨等级：强降雨。父数据集：IDRA气象雷达观测数据——2016年7月。观测仪器为位于荷兰卡堡CESAR（Cabauw Experimental Site for Atmospheric Research）观测站的IDRA（IRCTR Drizzle Radar）大气雷达。卡堡IRCTR搭建了一套高分辨率雷达系统IDRA，旨在对降雨与毛毛雨的时空分布开展精细化观测。该系统于2007年8月末部署于荷兰卡堡的CESAR观测场内一座213米高的气象塔塔顶。该观测点位具备多重优势：其一，地面杂波影响得到抑制，可提升探测灵敏度；其二，可直接观测低层云与雾的水平分布特征；其三，观测站周边部署的其他仪器可通过协同融合观测数据，助力研究者深化对大气物理过程的认知。CESAR观测站其他仪器的观测数据可通过网址{http://www.cesar-database.nl}获取。IDRA系统可输出反射率因子（reflectivity）、平均多普勒速度（mean Doppler velocity）、多普勒谱宽（Doppler spectrum width）以及差分反射率因子（differential reflectivity）、线性退极化比（linear depolarization ratio）、比差分相位（specific differential phase）等偏振观测参数的水平分布数据。所采集的数据集可向全球科学界免费开放获取。